Past Director, Laboratory of Virology, Capital Institute of Pediatrics, Beijing, China
Full member of American Society for Virology
Was Visiting Associate, Laboratory of Infectious Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health (NIH), U.S.A.
Was Visiting Scientist, Ohio Agricultural Research and Development Center, Department of Veterinary Preventive Medicine, Ohio State University, U. S. A.
Was President of Chinese Society for Microbiology and Immunology
Published more than 100 articles on etiological analysis for virus infectious diseases in children